package com.itheima.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.constant.MessageConstant;
import com.itheima.dao.MemberDao;
import com.itheima.dao.OrderDao;
import com.itheima.dao.OrderSettingDao;
import com.itheima.entity.Result;
import com.itheima.pojo.Member;
import com.itheima.pojo.Order;
import com.itheima.pojo.OrderSetting;
import com.itheima.service.OrderService;
import com.itheima.utils.DateUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;
import java.util.Date;
import java.util.List;
import java.util.Map;

/**
 * @author wgq
 * @date 2019-10-17 21:10
 * 体检预约，服务层
 */
@Service(interfaceClass = OrderService.class)
@Transactional
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderSettingDao orderSettingDao;
    @Autowired
    private MemberDao memberDao;
    @Autowired
    private OrderDao orderDao;
    /**
     * 体检预约
     * @param map
     */
    @Override
    public Result order(Map map) throws Exception{

        //1、检查用户所选择的预约日期是否已经提前进行了预约设置，如果没有设置则无法进行预约
        //获取用户多选择的日期
        String orderDate = (String) map.get("orderDate");
        //将字符串格式的date转换为日期格式的 date
        Date date = DateUtils.parseString2Date(orderDate);
        OrderSetting orderSetting = orderSettingDao.findByOrderSetting(date);
        if (orderSetting == null){
            return new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);
        }
        //2、检查用户所选择的预约日期是否已经约满，如果已经约满则无法预约
        //获取可预约人数
        int number = orderSetting.getNumber();
        //获取已预约人数
        int reservations = orderSetting.getReservations();
        if(reservations >= number){
            //该日期，预约人数已经满了。不能预约
            return new Result(false,MessageConstant.ORDER_FULL);
        }
        //3、检查用户是否重复预约（同一个用户在同一天预约了同一个套餐），如果是重复预约则无法完成再次预约
        //4、检查当前用户是否为会员，如果是会员则直接完成预约，如果不是会员则自动完成注册并进行预约
        //检查当前用户是否为会员。根据手机号码 来获取
        String telephone = (String) map.get("telephone");
        Member member = memberDao.findByTelephone(telephone);
        if(member != null){
            Integer memberId = member.getId();
            int setmealId = Integer.parseInt((String) map.get("setmealId"));
            //Integer setmealId = (Integer) map.get("setmealId");
            Order order = new Order(memberId,date,setmealId);
            List<Order> orderList = orderDao.findByCondition(order);
            if(orderList != null || orderList.size() > 0){
                return new Result(false, MessageConstant.HAS_ORDERED);
            }

        }
        orderSetting.setReservations(orderSetting.getReservations()+1);
//        根据预约日期，修改已预约人数，这里参数 传入 date也是可以的
        orderSettingDao.editReservationsByOrderDate(orderSetting);
        if(member == null){
            member = new Member();
            member.setName((String) map.get("name"));
            member.setSex((String) map.get("sex"));
            member.setIdCard((String) map.get("idCard"));
            member.setPhoneNumber(telephone);
            member.setRegTime(new Date());
            memberDao.add(member);
        }
        //5、预约成功，更新当日的已预约人数
        //保存预约信息到预约表
        Order order = new Order(member.getId(),date,(String)map.get("orderType"),
                                Order.ORDERSTATUS_NO,Integer.parseInt((String)map.get("setmealId")));
        orderDao.add(order);
        return new Result(true,MessageConstant.ORDER_SUCCESS,order.getId());
    }

    /**
     * 预约成功后，根据预约信息的ID显示预约信息
     * @param id
     * @return
     */
    @Override
    public Map findById(Integer id) throws Exception{
        Map map = orderDao.findById4Detail(id);
        if(map != null){
            Date orderDate = (Date) map.get("orderDate");
            map.put("orderDate",DateUtils.parseDate2String(orderDate));
        }
        return map;
    }
}
